Identify features of the economic business cycle. 1  Business cycles are identified as having four distinct phases: expansion, peak, contraction, and trough.  Business cycle fluctuations occur around a long-term growth trend and are usually measured by considering the growth rate of real gross domestic product.
The voltage induced in the coils are proportional to the rate of turn of the vessel or vehicle such as a towboat utilizing the rate of turn indicator 10. The bridge rectifiers 63 and 65 rectify the coil voltage to a DC voltage to operate the rate of turn meter.. Field of the Invention. The present invention relates to a navigational aid or nautical instrument, and more particularly, pertains to a rate of turn indicator for indicating the rate of turn from a course of travel for a vessel or other like vehicle.
It really depends on the size of the turbine, where itâs loated, its model, and how fast the wind is blowing. Typically, however, the turbines spin at a rate of about 20-30 rotations per minute (RPM). And their speed remains constantâcontrolled by mechanics working below.